Sectional ductor roller



April 18, 1939. Y R. Hy GIBB SECTIONAL DUC'IOR ROLLER Filed Feb. 18, 1938 #l y; g

a). OB WG 3m .R f M E 1 Mmm Patented Apr. 18, 1939 UNVIEDy S'IA'I?ESL PATlElN-i'lv OFFICE 3 L Claims.,

This invention relates to a sectional ductor roller, adapted for use inV printing presses.

The roller' of this invention; is preferably constructed'in four sections' andis made especially 5 for-flat-bed web perfecting press -but can be used* to apportionately the same advantage on other" the six, four, two or one-page length.

With the improved type of roller hereinafter described it is necessary only to loosen the closed socket, remove a locking collar, pull out a one-- page section of composition roller, replace the locking collar, fastenand beginprinting. This same procedure is followed in preparation for printing a six, four, two or one-page paper. The

advantage in this respect is theconvenience' in handling and a saving in labor.

The greatest advantage is in the novel construction and arrangement, whereby saving in costof additional composition used under the 01d method is effected, inasmuch as under the old two complete sets of four rollers for each of the ve different sizes, namely eight, six, four, two

and one-page sizes. This feature alone will save the printer approximately 60 per cent of the present cost.

Another object of the invention is the construction of a printing roller which comprises a primary tube with one or more tubular sections thereon, and novel pin and socket locking means associated with said primary tube and tubular section or sections, whereby the cooperating parts are securely fastened in an assembled position.

With the foregoing and other objects in. view, my invention comprises certain novel constructions, combinations and arrangements of parts as will be hereinafter fully described, illustrated in the accompanying drawing, and more particularly pointed out in the appended claims.

In the drawing:

Figure 1 is a view in elevation, partly shown in longitudinal section, of a roller constructed in accordance with the present invention.

Figure 2 is a view in elevation, partly shown in longitudinal section, of a roller comprising prefreplacethem with four other rollers of either method each year it was necessary to purchase- (Cl. lol- 348) erably two tubular sections, whereas in Figure 1 fourv tubular sections are shown.

Figure 3 is an enlarged longitudinal sectional viewof two tubular sections, and the two locking collars, all shown in a separated position upon the primary tube.

Figure 4 is a view taken on line 4 4, Figure 3, and looking inV the direction of the arrows.

Figure 5' is a View taken on line 5 5, Figure 3', and looking in the .direction of the arrows.

Figure 6 is an enlarged longitudinal sectional Viewl of another embodiment of the present invention, while Figure '7 isa view taken on line 1-1, Figure 6, and-looking in the direction of the arrows.

Figure 8A is a transverse sectional View of another embodiment o-f the present invention.

Referring to the drawing by numerals, l designates a primary tube, which the constructor may make solid, as he desires. In each end'V of said tube I a bearing shaft 2 is placed, inv any suitable manner. Tubular sections 3- are placed upon the primary tube l. Each tubular section 3 is provided in one end with longitudinally-extending sockets 4, and in its opposite end with integralA longitudinally-extending pins 5. As clearly shown in Figure 3, the locking pins 5 are adaptedl to enter the pin-receiving sockets 4 for securing the abutting tubular section against independent rotary movement. Therefore, this` pin` and socket4 construction constitute interlocking means on the ends of the abutting tubular sections.

To exclusively hold the tubular sections on the primary shaft or tube l against independent movement, there is provided two locking collars 6 and 1. Each collar is provided with a set screw 8 (Fig. 5), whereby the collar can be fixedly secured to tube l by tightening said set screw 8. The female locking collar 6 is provi-ded with pinreceiving sockets 9, and the male locking collar 'l is provided with integral locking pins ID; these integral pins l are adapted to enter the pin-receiving sockets 4 of the contiguous tubular section 3. The sockets. 9, of female locking collar 6, are adapted to receive the locking pins on the contiguous tubular section 3. After the units are brought in tight engagement (see Figs. 1 and 2) the set screws 8 are tightened, andthen the parts are fixedly and snugly assembled, ready for the printing process.

On all of the tubular sections a suitable composition covering II is placed.

In the embodiment shown in Figures 6 and '7 the tubular section I2 has in one end a male locking collar "Ia, which surrounds primary tube I; in the other end of tubular section I2 is a female locking collar 6a. Extending from the male locking collar Ia are integral locking pins 5, and formed in the female locking collar 6a are pin-receiving sockets 4. The assembling of the locking collars 6 and 'I (Fig. 3) on primary tube I-, in the embodiment shown in Fig. 6, is the same as hereinbefore described, in connection with the embodiment shown in Figures l to 4. It will be obvious that any number of the units shown in Fig. 6 may be applied to the primary shaft or tube I, as the operator desires, similar to the plurality of tubular sections that are shown in Figures 1 and 2.

In the embodiment shown in Figure 8, on the tubular section 3 there is formed a composition covering or tube I3, on which is placed a tubularlike covering I4.

The units of the roller are constructed of suitable material, and are each treated in any standard manner for making them very durable and of long life.

The bearing shafts 2, locking collars 6a and 'Ia and lockingy pins 5 are placed in their supporting parts in any suitable manner, such as sweating, etc., known to the metal art.

The objects and important advantages of this practical invention have been set out in considerable detail in the paragraphs at the beginning of this specification. t

While I have described the preferred embodiments of my invention and illustrated the same in the accompanying drawing, certain minor changes or alterations may appear to one skilled in the art to which this invention relates during the extensive manufacture of same, and I, therefore, reserve the right to make such changes or alterations as shall fairly fall within the scope of the appended claims.

What I claim is:

1. As a new article of manufacture, a ductor roller, comprising a primary tube having an uninterrupted surface, a tubular section having an uninterrupted inner surface on said primary tube, a male and a female locking collar on' said primary tube tting snugly against the ends of said tubular section, said male locking collar provided with integral pins spaced from said primary tube and extending into said tubular section, said female locking collar provided with sockets spaced from said primary tube, said tubular section provided only at one end with integral pins spaced from said primary tube and in the sockets of said female locking collar, and each locking collar provided with a set screw.

2. As a new article of manufacture, a. ductor roller, comprising a, primary tube, a tubular sec= tion on said primary tube, said tubular section provided in one end only with a pair only of longitudinally extending sockets and on its other end only with a pair only of longitudinally-extending integral pins spaced from said primary tube, a male locking collar provided with a screw on said primary tube fitting snugly against the socketed end of said tubular section, said male locking collar provided also witha pair of integral longitudinally-extending pins spaced from said primary tube and in the sockets of said tubular section, a female locking collar provided with a screw on said primary tube fitting snugly against said pin-carrying end of said tubular section, said female locking collar provided with a pair only of longitudinally-extending sockets spaced from said primary tube, and said pair of pins on the end of said tubular section in said pair of sockets of said female locking collar.

3. As a new article of manufacture, a ductor roller, comprising a primary tube, a male locking collar provided with outwardly-extending integral pins on said primary tube, a female locking collar provided with sockets on said primary tube, a, tubular section spaced throughout its entire length from said primary tube and tightvly fitting only said locking collars with the outer faces of said collars flush with the ends of said tubular section, a male locking collar on said primary tube fitting snugly against the female locking collar within the tubular section, said last-mentioned male locking collar provided with integral pins in the sockets of said female locking collar, a female locking collar on said primary tube fitting snugly against the male locking collar within the tubular section, said lastmentioned female locking collar provided with sockets, said pins of the first-mentioned male locking collar in said sockets of the last-mentioned female locking collar, all of said pins being spaced from said primary tube, and said lastmentioned collars outside of said tubular section each provided with a set screw.

ROBERT HENRY GIBB. 

